Aural attachment for telephone-receivers



E. G. HESS. AURAL ATTACHMENT FOR TELEPHONE EEcEIVEEs.

No. 431,810. PatentedJ'uly 8, 1890.

um n cer Witnesses UNITED STATES PATENT OFricE.

EDWIN CHARLES HESS, OF MONTREAL, CANADA, ASSIGNOR OF TW'O-THIRDS TOFRANK CAVERHILL, OF SAME PLACE, AND FRANK S. HARRISON, OF

NEWARK, NEV JERSEY.

AU RAL ATTACHMENT FOR TELEPHONE-RECEIVERS.

SPECIFICATION forming part of Letters Patent No. 431,810, dated July 8,1890. Application filed April 16, 1890- Serial No. 348,265. (No model.)

To all whom it may concern:

Be it known that I, EDWIN CHARLES HESS,

of the city of Montreal, in the district of Montreal and Province ofQuebec, Canada, have invented a certain new and useful Improved AuralAttachment for Telephone-Receivers; and I do hereby declare that thefollowing is a full, clear, and exact description of the same. Thisinvention is intended to provide means whereby the necessity of holdinga telephonereceiver in the hand while listening is avoided and allsounds other than that from the receiver are effectually cut off,besidespreventing to a large extent complaints as to the indistinction oftransmission which in many cases is due not to any fault of theinstruments, but deafness on the part of the listener.

The invention consists, broadly speaking, in caps adapted to fit overthe ears and a communicating passage between them, one of the capstaking the place of the usual cap, which isscrewed onto the end of thetelephone-receiver to hold the diaphragm in place. For fullcomprehension, however, of the inven- 2 5 tion, reference must be had tothe annexed drawings, in which Figures 1 and 2 are views showing theattachment connected with areceiver and arranged in place on the head,and Fig. 3 a

view showing a longitudinal section of the attachment and part of thereceiver.

Similar letters of reference indicate like parts.

A is the usual telephone-receiver, and B a 3 5 cap that differs from theordinary kind, which it replaces, only in that its concave recess isdeeper and wider, so as to fit the ear, and that it has a subsiduaryopening 13' leading from such recess through a nipple 1), projectingfrom the side of the cap. Connected with this nipple is a length oftubing C, preferably of the same material (hard rubber) as the cap B,and carrying on its outer end another cap D, also having a perforatednipple D leading to its interior, with which the tubing connects.

I The tubing C is in the shape of a bow to fit over the head andpossesses sufficient flexibility to furnish a springiness that will keepit in place on the head and so serve to support the receiver.

The caps, if desired, can be made substantially auriform, as shown inFig. 2, so as to fit the ears snugly, and, as will be readily seen, areeasily interchangeable.

The connection between the tubing and cap B is in the form ofaswivel-joint, so that such tubing and the cap D can be turned into thereverse positions shown by dotted lines in Fig. 1.

Supporting the receiver by the head leaves the hands free to take downmessages, &c., while both ears being enveloped any foreign sounds areexcluded, and should it chance that the listener is troubled withdeafness (of which he may not be conscious) in one ear the receiver willnot necessarily be blamed, as the sound will be effectually conveyed tothe other ear.

What I claim is as follows: 7o

1. The combination, with a telephone receiver-body, of caps havingrecesses to receive theears of the user, one of such caps being screwedonto said receiver-body and serving to hold the diaphragm of same inplace, and a resilient tube having one end connected with the said capon the receiver and the other end carrying the opposite cap, for thepurpose set forth.

2. The combination, with a telephone receiver-body, of caps havingrecesses to receive the ears of the user and perforated nipples, one ofsuch caps beingscrewed onto said receiver and serving to hold thediaphragm of same in place, a resilient tube carrying on one end theother cap, and a swivelconnection between the opposite end of said tubeand the cap connected to the receiver-' body, for the purpose set forth.

Montreal, April 12, 1890.

EDWIN CHARLES HESS.

In presence of- OWEN M. WANE, WM. P. MCFEAT.

